SciELO - Scientific Electronic Library Online

 
vol.28 issue1Selective extraction of chicahuastle: effects, local knowledge, and management guidelines author indexsubject indexsearch form
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • Have no similar articlesSimilars in SciELO

Share


Madera y bosques

On-line version ISSN 2448-7597Print version ISSN 1405-0471

Abstract

PEDRO CRUZ, Adrián et al. Pinus patula var. longepedunculata Loock growth in plantations of the Sierra Sur of Oaxaca. Madera bosques [online]. 2022, vol.28, n.1, e2811438.  Epub Sep 05, 2022. ISSN 2448-7597.  https://doi.org/10.21829/myb.2022.2811438.

The research works on growth and yield of forest plantations, particularly in coniferous species planted in the different Mexican tropical regions, are scarce. Mathematical models are a useful tool for optimal timber forest resources management. In this work, whole stand explicit prediction models were fitted, with data from permanent plots, to determine the growth and timber yields of forest plantations of Pinus patula var. longepedunculata Loock in the Sierra Sur of Oaxaca. Site index was determined with the polymorphic Schumacher model, which was correlated with the basal area and volume models through seemingly unrelated regression. Families of curves with site indexes of 9 m, 11 m, 13 m and 15 m for height at a base age of 10 years were obtained; in basal area site indexes of 32.9 m2 ha-1, 37.9 m2 ha-1, 42. 5 m2 ha-1 and 47 m2 ha-1 at 20 years of age were estimated. In addition, a volume per site indexes of 187.5 m3 ha-1, 234.3 m3 ha-1, 282 m3 ha-1 and 330.6 m3 ha-1 was determined at this latter age. The maximum yield obtained for each site was 10.23 m3 ha-1 year-1, 12.04 m3 ha-1 year-1, 14.12 m3 ha-1 year-1, 16.6 m3 ha-1 yr-1, which suggests rotation periods differents for each site ranging from 19 years to 30 years time.

Keywords : Miahuatlan; explicit growth model; productivity; seemingly unrelated regression; yield.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )